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|
// license:BSD-3-Clause
// copyright-holders:Luca Elia
/***************************************************************************
-= American Speedway =-
driver by Luca Elia (l.elia@tin.it)
CPU : Z80A x 2
Sound: YM2151
(c)1987 Enerdyne Technologies, Inc. / PGD
***************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/gen_latch.h"
#include "sound/ymopm.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
#include "tilemap.h"
namespace {
class amspdwy_state : public driver_device
{
public:
amspdwy_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_spriteram(*this, "spriteram"),
m_colorram(*this, "colorram"),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_ym2151(*this, "ymsnd"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_soundlatch(*this, "soundlatch"),
m_io_analog(*this, "AN%u", 1U),
m_io_wheel(*this, "WHEEL%u", 1U),
m_io_in0(*this, "IN0")
{ }
void amspdwy(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
private:
/* memory pointers */
required_shared_ptr<uint8_t> m_videoram;
required_shared_ptr<uint8_t> m_spriteram;
required_shared_ptr<uint8_t> m_colorram;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<ym2151_device> m_ym2151;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_device<generic_latch_8_device> m_soundlatch;
/* I/O ports */
required_ioport_array<2> m_io_analog;
required_ioport_array<2> m_io_wheel;
required_ioport m_io_in0;
/* video-related */
tilemap_t *m_bg_tilemap;
int m_flipscreen;
/* misc */
uint16_t m_wheel_old[2];
uint8_t m_wheel_return[2];
void amspdwy_flipscreen_w(uint8_t data);
void amspdwy_videoram_w(offs_t offset, uint8_t data);
void amspdwy_colorram_w(offs_t offset, uint8_t data);
uint8_t amspdwy_sound_r();
TILE_GET_INFO_MEMBER(get_tile_info);
TILEMAP_MAPPER_MEMBER(tilemap_scan_cols_back);
uint32_t screen_update_amspdwy(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
template <unsigned Index> uint8_t amspdwy_wheel_r();
void amspdwy_map(address_map &map);
void amspdwy_portmap(address_map &map);
void amspdwy_sound_map(address_map &map);
};
void amspdwy_state::amspdwy_flipscreen_w(uint8_t data)
{
m_flipscreen ^= 1;
flip_screen_set(m_flipscreen);
}
/***************************************************************************
Callbacks for the TileMap code
[ Tiles Format ]
Videoram: 76543210 Code Low Bits
Colorram: 765-----
---43--- Code High Bits
-----210 Color
***************************************************************************/
TILE_GET_INFO_MEMBER(amspdwy_state::get_tile_info)
{
uint8_t code = m_videoram[tile_index];
uint8_t color = m_colorram[tile_index];
tileinfo.set(0,
code + ((color & 0x18)<<5),
color & 0x07,
0);
}
void amspdwy_state::amspdwy_videoram_w(offs_t offset, uint8_t data)
{
m_videoram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
void amspdwy_state::amspdwy_colorram_w(offs_t offset, uint8_t data)
{
m_colorram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
/* logical (col,row) -> memory offset */
TILEMAP_MAPPER_MEMBER(amspdwy_state::tilemap_scan_cols_back)
{
return col * num_rows + (num_rows - row - 1);
}
void amspdwy_state::video_start()
{
m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(amspdwy_state::get_tile_info)), tilemap_mapper_delegate(*this, FUNC(amspdwy_state::tilemap_scan_cols_back)), 8, 8, 0x20, 0x20);
}
/***************************************************************************
Sprites Drawing
Offset: Format: Value:
0 Y
1 X
2 Code Low Bits
3 7------- Flip X
-6------ Flip Y
--5-----
---4---- ?
----3--- Code High Bit?
-----210 Color
***************************************************************************/
void amspdwy_state::draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect )
{
int const max_x = m_screen->width() - 1;
int const max_y = m_screen->height() - 1;
for (int i = 0; i < m_spriteram.bytes(); i += 4)
{
int y = m_spriteram[i + 0];
int x = m_spriteram[i + 1];
int const code = m_spriteram[i + 2];
int const attr = m_spriteram[i + 3];
int flipx = attr & 0x80;
int flipy = attr & 0x40;
if (flip_screen())
{
x = max_x - x - 8;
y = max_y - y - 8;
flipx = !flipx;
flipy = !flipy;
}
m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
// code + ((attr & 0x18)<<5),
code + ((attr & 0x08)<<5),
attr,
flipx, flipy,
x,y,0 );
}
}
/***************************************************************************
Screen Drawing
***************************************************************************/
uint32_t amspdwy_state::screen_update_amspdwy(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
draw_sprites(bitmap, cliprect);
return 0;
}
/***************************************************************************
Main CPU
***************************************************************************/
/*
765----- Buttons
---4---- Sgn(Wheel Delta)
----3210 Abs(Wheel Delta)
Or last value when wheel delta = 0
*/
template <unsigned Index>
uint8_t amspdwy_state::amspdwy_wheel_r()
{
uint16_t wheel = m_io_analog[Index]->read();
if (wheel != m_wheel_old[Index])
{
wheel = (wheel & 0x7fff) - (wheel & 0x8000);
if (wheel > m_wheel_old[Index])
m_wheel_return[Index] = ((+wheel) & 0xf) | 0x00;
else
m_wheel_return[Index] = ((-wheel) & 0xf) | 0x10;
m_wheel_old[Index] = wheel;
}
return m_wheel_return[Index] | m_io_wheel[Index]->read();
}
uint8_t amspdwy_state::amspdwy_sound_r()
{
return (m_ym2151->status_r() & ~0x30) | m_io_in0->read();
}
void amspdwy_state::amspdwy_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0x801f).w(m_palette, FUNC(palette_device::write8)).share("palette");
map(0x9000, 0x93ff).mirror(0x0400).ram().w(FUNC(amspdwy_state::amspdwy_videoram_w)).share("videoram");
map(0x9800, 0x9bff).ram().w(FUNC(amspdwy_state::amspdwy_colorram_w)).share("colorram");
map(0x9c00, 0x9fff).ram(); // unused?
// map(0xa000, 0xa000).nopw(); // ?
map(0xa000, 0xa000).portr("DSW1");
map(0xa400, 0xa400).portr("DSW2").w(FUNC(amspdwy_state::amspdwy_flipscreen_w));
map(0xa800, 0xa800).r(FUNC(amspdwy_state::amspdwy_wheel_r<0>)); // player 1
map(0xac00, 0xac00).r(FUNC(amspdwy_state::amspdwy_wheel_r<1>)); // player 2
map(0xb000, 0xb000).nopw(); // irq ack?
map(0xb400, 0xb400).r(FUNC(amspdwy_state::amspdwy_sound_r)).w(m_soundlatch, FUNC(generic_latch_8_device::write));
map(0xc000, 0xc0ff).ram().share("spriteram");
map(0xe000, 0xe7ff).ram();
}
void amspdwy_state::amspdwy_portmap(address_map &map)
{
map(0x0000, 0x7fff).rom().region("tracks", 0);
}
/***************************************************************************
Sound CPU
***************************************************************************/
void amspdwy_state::amspdwy_sound_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
// map(0x8000, 0x8000).nopw(); // ? writes 0 at start
map(0x9000, 0x9000).r(m_soundlatch, FUNC(generic_latch_8_device::read));
map(0xa000, 0xa001).rw(m_ym2151, FUNC(ym2151_device::read), FUNC(ym2151_device::write));
map(0xc000, 0xdfff).ram();
map(0xffff, 0xffff).nopr(); // ??? IY = FFFF at the start ?
}
/***************************************************************************
Input Ports
***************************************************************************/
static INPUT_PORTS_START( amspdwy )
PORT_START("DSW1")
PORT_DIPNAME( 0x01, 0x00, "Character Test" ) PORT_DIPLOCATION("SW1:8")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x00, "Show Arrows" ) PORT_DIPLOCATION("SW1:7")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x02, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x04, DEF_STR( On ) )
PORT_SERVICE_DIPLOC( 0x08, IP_ACTIVE_HIGH, "SW1:5" )
PORT_DIPNAME( 0x10, 0x00, "Steering Test" ) PORT_DIPLOCATION("SW1:4")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x10, DEF_STR( On ) )
PORT_DIPUNUSED_DIPLOC( 0x20, 0x00, "SW1:3" ) /* Listed as "Unused" */
PORT_DIPUNUSED_DIPLOC( 0x40, 0x00, "SW1:2" ) /* Listed as "Unused" */
PORT_DIPUNUSED_DIPLOC( 0x80, 0x00, "SW1:1" ) /* Listed as "Unused" */
PORT_START("DSW2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW2:7,8")
PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
// PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPNAME( 0x0c, 0x00, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:5,6")
PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x04, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x08, DEF_STR( Hard ) )
PORT_DIPSETTING( 0x0c, DEF_STR( Hardest ) )
PORT_DIPNAME( 0x30, 0x00, "Time To Qualify" ) PORT_DIPLOCATION("SW2:3,4") /* code at 0x1770 */
PORT_DIPSETTING( 0x30, "20 sec" )
PORT_DIPSETTING( 0x20, "30 sec" )
PORT_DIPSETTING( 0x10, "45 sec" )
PORT_DIPSETTING( 0x00, "60 sec" )
PORT_DIPUNUSED_DIPLOC( 0x40, 0x00, "SW2:2" ) /* Listed as "Unused" */
PORT_DIPUNUSED_DIPLOC( 0x80, 0x00, "SW2:1" ) /* Listed as "Unused" */
PORT_START("WHEEL1") // Player 1 Wheel + Coins
PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_CUSTOM ) // wheel
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_IMPULSE(2) // 2-3f
PORT_START("WHEEL2") // Player 2 Wheel + Coins
PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_CUSTOM )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_IMPULSE(2)
PORT_START("IN0") // Player 1&2 Pedals + YM2151 Sound Status
PORT_BIT( 0x0f, IP_ACTIVE_HIGH, IPT_CUSTOM )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_CUSTOM )
PORT_START("AN1") // Player 1 Analog Fake Port
PORT_BIT( 0xffff, 0x0000, IPT_DIAL ) PORT_SENSITIVITY(15) PORT_KEYDELTA(20) PORT_CODE_DEC(KEYCODE_LEFT) PORT_CODE_INC(KEYCODE_RIGHT) PORT_PLAYER(1)
PORT_START("AN2") // Player 2 Analog Fake Port
PORT_BIT( 0xffff, 0x0000, IPT_DIAL ) PORT_SENSITIVITY(15) PORT_KEYDELTA(20) PORT_CODE_DEC(KEYCODE_D) PORT_CODE_INC(KEYCODE_G) PORT_PLAYER(2)
INPUT_PORTS_END
static INPUT_PORTS_START( amspdwya )
PORT_INCLUDE(amspdwy)
PORT_MODIFY("DSW2")
PORT_DIPNAME( 0x10, 0x00, "Time To Qualify" ) PORT_DIPLOCATION("SW2:4") /* code at 0x2696 */
PORT_DIPSETTING( 0x10, "45 sec" )
PORT_DIPSETTING( 0x00, "60 sec" )
PORT_DIPUNUSED_DIPLOC( 0x20, 0x00, "SW2:3" ) /* Listed as "Unused" */
INPUT_PORTS_END
/***************************************************************************
Graphics Layouts
***************************************************************************/
static const gfx_layout layout_8x8x2 =
{
8,8,
RGN_FRAC(1,2),
2,
{ RGN_FRAC(0,2), RGN_FRAC(1,2) },
{ STEP8(0,1) },
{ STEP8(0,8) },
8*8
};
static GFXDECODE_START( gfx_amspdwy )
GFXDECODE_ENTRY( "gfx1", 0, layout_8x8x2, 0, 8 )
GFXDECODE_END
/***************************************************************************
Machine Drivers
***************************************************************************/
void amspdwy_state::machine_start()
{
save_item(NAME(m_flipscreen));
save_item(NAME(m_wheel_old));
save_item(NAME(m_wheel_return));
}
void amspdwy_state::machine_reset()
{
m_flipscreen = 0;
m_wheel_old[0] = 0;
m_wheel_old[1] = 0;
m_wheel_return[0] = 0;
m_wheel_return[1] = 0;
}
void amspdwy_state::amspdwy(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, 3000000);
m_maincpu->set_addrmap(AS_PROGRAM, &amspdwy_state::amspdwy_map);
m_maincpu->set_addrmap(AS_IO, &amspdwy_state::amspdwy_portmap);
m_maincpu->set_vblank_int("screen", FUNC(amspdwy_state::irq0_line_hold)); /* IRQ: 60Hz, NMI: retn */
Z80(config, m_audiocpu, 3000000);
m_audiocpu->set_addrmap(AS_PROGRAM, &amspdwy_state::amspdwy_sound_map);
config.set_perfect_quantum(m_maincpu);
/* video hardware */
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_refresh_hz(60);
m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(0));
m_screen->set_size(256, 256);
m_screen->set_visarea(0, 256-1, 0+16, 256-16-1);
m_screen->set_screen_update(FUNC(amspdwy_state::screen_update_amspdwy));
m_screen->set_palette(m_palette);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_amspdwy);
PALETTE(config, m_palette).set_format(palette_device::BGR_233_inverted, 32);
/* sound hardware */
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
GENERIC_LATCH_8(config, m_soundlatch);
m_soundlatch->data_pending_callback().set_inputline(m_audiocpu, INPUT_LINE_NMI);
YM2151(config, m_ym2151, 3000000);
m_ym2151->irq_handler().set_inputline(m_audiocpu, 0);
m_ym2151->add_route(0, "lspeaker", 1.0);
m_ym2151->add_route(1, "rspeaker", 1.0);
}
/***************************************************************************
ROMs Loading
***************************************************************************/
/***************************************************************************
American Speedway
USES TWO Z80 CPU'S W/YM2151 SOUND
THE NUMBERS WITH THE NAMES ARE PROBABLY CHECKSUMS
NAME LOCATION TYPE
------------------------
AUDI9363 U2 27256 CONN BD
GAME5807 U33 " "
TRKS6092 U34 " "
HIHIE12A 4A 2732 REAR BD
HILO9B3C 5A " "
LOHI4644 2A " "
LOLO1D51 1A " "
American Speedway (Set 2)
1987 Enerdyne Technologies, Inc. Has Rev 4 PGD written on the top board.
Processors
------------------
Dual Z80As
YM2151 (sound)
RAM
------------------
12 2114
5 82S16N
Eproms
==================
Name Loc TYpe Checksum
---------- ---- ----- --------
Game.u22 U33 27256 A222
Tracks.u34 U34 27256 6092
Audio.U02 U2 27256 9363
LOLO1.1A 1A 2732 1D51
LOHI.2A 2A 2732 4644
HIHI.4A 3/4A 2732 E12A
HILO.5A 5A 2732 9B3C
***************************************************************************/
ROM_START( amspdwy )
ROM_REGION( 0x10000, "maincpu", 0 ) /* Main Z80 Code */
ROM_LOAD( "game5807.u33", 0x0000, 0x8000, CRC(88233b59) SHA1(bfdf10dde1731cde5c579a9a5173cafe9295a80c) )
ROM_REGION( 0x10000, "audiocpu", 0 ) /* Sound Z80 Code */
ROM_LOAD( "audi9463.u2", 0x0000, 0x8000, CRC(61b0467e) SHA1(74509e7712838dd760919893aeda9241d308d0c3) )
ROM_REGION( 0x8000, "tracks", 0 )
ROM_LOAD( "trks6092.u34", 0x0000, 0x8000, CRC(74a4e7b7) SHA1(b4f6e3faaf048351c6671205f52378a64b81bcb1) )
ROM_REGION( 0x4000, "gfx1", 0 ) /* Layer + Sprites */
ROM_LOAD( "hilo9b3c.5a", 0x0000, 0x1000, CRC(f50f864c) SHA1(5b2412c1558b30a04523fcdf1d5cf6fdae1ba88d) )
ROM_LOAD( "hihie12a.4a", 0x1000, 0x1000, CRC(3d7497f3) SHA1(34820ba42d9c9dab1d6fdda15795450ce08392c1) )
ROM_LOAD( "lolo1d51.1a", 0x2000, 0x1000, CRC(58701c1c) SHA1(67b476e697652a6b684bd76ae6c0078ed4b3e3a2) )
ROM_LOAD( "lohi4644.2a", 0x3000, 0x1000, CRC(a1d802b1) SHA1(1249ce406b1aa518885a02ab063fa14906ccec2e) )
ROM_END
ROM_START( amspdwya )
ROM_REGION( 0x10000, "maincpu", 0 ) /* Main Z80 Code */
ROM_LOAD( "game.u33", 0x0000, 0x8000, CRC(facab102) SHA1(e232969eaaad8b89ac8e28ee0a7996107a7de9a2) )
ROM_REGION( 0x10000, "audiocpu", 0 ) /* Sound Z80 Code */
ROM_LOAD( "audi9463.u2", 0x0000, 0x8000, CRC(61b0467e) SHA1(74509e7712838dd760919893aeda9241d308d0c3) )
ROM_REGION( 0x8000, "tracks", 0 )
ROM_LOAD( "trks6092.u34", 0x0000, 0x8000, CRC(74a4e7b7) SHA1(b4f6e3faaf048351c6671205f52378a64b81bcb1) )
ROM_REGION( 0x4000, "gfx1", 0 ) /* Layer + Sprites */
ROM_LOAD( "hilo9b3c.5a", 0x0000, 0x1000, CRC(f50f864c) SHA1(5b2412c1558b30a04523fcdf1d5cf6fdae1ba88d) )
ROM_LOAD( "hihie12a.4a", 0x1000, 0x1000, CRC(3d7497f3) SHA1(34820ba42d9c9dab1d6fdda15795450ce08392c1) )
ROM_LOAD( "lolo1d51.1a", 0x2000, 0x1000, CRC(58701c1c) SHA1(67b476e697652a6b684bd76ae6c0078ed4b3e3a2) )
ROM_LOAD( "lohi4644.2a", 0x3000, 0x1000, CRC(a1d802b1) SHA1(1249ce406b1aa518885a02ab063fa14906ccec2e) )
ROM_END
} // anonymous namespace
/* (C) 1987 ETI 8402 MAGNOLIA ST. #C SANTEE, CA 92071 */
GAME( 1987, amspdwy, 0, amspdwy, amspdwy, amspdwy_state, empty_init, ROT0, "Enerdyne Technologies Inc.", "American Speedway (set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1987, amspdwya, amspdwy, amspdwy, amspdwya, amspdwy_state, empty_init, ROT0, "Enerdyne Technologies Inc.", "American Speedway (set 2)", MACHINE_SUPPORTS_SAVE )
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